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Patent applications and USPTO patent grants for Bi; Yanjin.The latest application filed is for "humic acid composition and application thereof".
Patent | Date |
---|---|
Humic acid composition and application thereof Grant 10,059,632 - Li , et al. August 28, 2 | 2018-08-28 |
Humic Acid Composition And Application Thereof App 20170129820 - LI; Hongfa ;   et al. | 2017-05-11 |
Corn stalk material, a method and apparatus for preparing it Grant 9,420,745 - Li , et al. August 23, 2 | 2016-08-23 |
Corn Stalk Material, A Method And Apparatus For Preparing It App 20140230395 - LI; Hongfa ;   et al. | 2014-08-21 |
Raw Paper Grant 8,771,465 - Li , et al. July 8, 2 | 2014-07-08 |
Method for preparing a grass-type unbleached paper product Grant 8,303,772 - Li , et al. November 6, 2 | 2012-11-06 |
Raw Paper And Production Method And Application Thereof App 20110297343 - Li; Hongfa ;   et al. | 2011-12-08 |
Grass Type Unbleached Paper Products And Production Method Thereof App 20110061825 - Li; Hongfa ;   et al. | 2011-03-17 |
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